Home / 20,254.29-27,946.42-11,751.47

Finding the Fourth Proportional to 20,254.29, 27,946.42 and 11,751.47

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Solution

The fourth proportional to 20,254.29, 27,946.42 and 11,751.47 is: 16,214.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254.29 : 27,946.42 = 11,751.47 : x
  2. Step 2: Convert to fraction form
    20,254.29/27,946.42 = 11,751.47/x
  3. Step 3: Cross multiply
    20,254.29x = 27,946.42 × 11,751.47
  4. Step 4: Simplify right side
    20,254.29x = 328,411,556.72
  5. Step 5: Solve for x
    x = 328,411,556.72/20,254.29
  6. Step 6: Final answer
    x = 16,214.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.